SPINRITE-Happy Baby Yarn. This super bulky weight yarn is perfect for all your baby knitting and crocheting projects! Weight category: 6. Content: 100% polyester. Putup: 3oz/85g, 90yd/82m. Gauge: 10sx15r = 4in/10cm on size US11/8mm knitting needles. Suggested crochet hook size L11/8mm. Dyelotted: we try but are not always able to match dyelots. Care: machine wash, dry low, do not bleach, do not iron do not dry clean. Comes in a variety of colors. Each sold separately. Imported.